225543365415242 has 128 divisors (see below), whose sum is σ = 404215833530880. Its totient is φ = 92396825763840.

The previous prime is 225543365415241. The next prime is 225543365415259. The reversal of 225543365415242 is 242514563345522.

It is a happy number.

It is a super-2 number, since 2×225543365415242² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (225543365415241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2724142598 + ... + 2724225390.

It is an arithmetic number, because the mean of its divisors is an integer number (3157936199460).

Almost surely, 2^{225543365415242} is an apocalyptic number.

225543365415242 is a deficient number, since it is larger than the sum of its proper divisors (178672468115638).

225543365415242 is a wasteful number, since it uses less digits than its factorization.

225543365415242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83488.

The product of its digits is 34560000, while the sum is 53.

The spelling of 225543365415242 in words is "two hundred twenty-five trillion, five hundred forty-three billion, three hundred sixty-five million, four hundred fifteen thousand, two hundred forty-two".